Ancient air challenges prominent explanation for a shift in glacial cycles

nature.com ^ | 10/30/2019

[BenLurkin]

ping

[yesthatjallen]

Understanding what caused the shift in periodicity, known as the mid-Pleistocene transition (MPT), is one of the great challenges of palaeoclimate science.

It's called the Sun.

[Freedom_Is_Not_Free]

Beats me. Why would glacial periods suddenly triple what can be explained by the tilt cycles? Aliens? I don’t know.

It sounds like CO2 is not the boogeyman.

[yesthatjallen]

They're starting to walk it back.

All their projects have been wrong and none of their trends are happening.

Other articles have appeared in the last year saying, 'any warming might not be as bad as we projected.'

In the next couple of years we're going to see a lot of new theories explaining why the old theories didn't pan out.

[NYAmerican]

“In the next couple of years we’re going to see a lot of new theories explaining why the old theories didn’t pan out.”

Let me guess. Capitalism and Christianity. Yeah, that’s it.

[Seruzawa]

For all their instruments and measurements and PhDs these clowns don’t have a clue. Yet we are bombarded with authoritarian statements claiming all sorts of dire consequences if we don’t give total power to technologists amd their cohorts, the bureaucrats.

It’s the second biggest scam of the Century, just behind the shrinks and their DSM bogus BS.

[Openurmind]

Every 124K... We are late...

[rawcatslyentist]

Or swapping orbits with Mars, when we were on intersecting orbits.

[Tucker39]

One can realize what a worthless crock of psychobabble that whole dissertation is if one remembers that Earth itself is only between 6,000 and 10,000 years old.

[SauronOfMordor]

It would be a bummer if we reduced CO2, and then discovered that we were overdue for our next glacial period, and the CO2 levels had been the only thing holding it off...

[BenLurkin]

[Openurmind]

That is exactly what is happening.

[reed13k]

So it was a 40,000 year cycle till 1M years ago when the cycles got longer.

Either the Sun changed it’s behavior or the Earth’s orientation changed very slightly.

I’m going to hypothesize (that’s scientific for guessing based on an idea) since it was so abrupt that the Earth got it’s noggin’ popped by a fairly large something or other just enough to change the cycle.

[PIF]

Earth got it’s noggin’ popped by a fairly large something or other just enough to change the cycle.

---

The the “something” would have to be bigger than 60 km since that didn’t change the climate 60 mya.

[reed13k]

Could’ve been a couple of ‘somethings’ - plus the angle and location would not necessarily require it to be as big as something hitting closer to the equator.

[PIF]

The only know somethings that hit the Earth and caused massive climate change were comet debris 12800 years ago which incinerated all life on the North American continent bringing on the Younger Dryas Age - the coldest period in ‘recent history’. Prior to that, nothing other than the Sun’s output striking Earth caused climate change.

[reed13k]

That we are aware of....

[SunkenCiv]

Whoops, will ping this later (two lists).

[SunkenCiv]

Thanks BenLurkin.

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